These lightweight hiking socks feature a soft terry-loop footbed that provides airy cushioning for your feet. Made of a skin-friendly, itch-free blend of merino wool, nylon and polyester for exceptional breathability, a cooling airflow and rugged durability, they have excellent stretch and recovery that lasts the lifetime of the sock. A mesh-arch brace provides a snug fit. The looped Lintoe construction creates the smallest and flattest seam possible for maximum toe comfort. The rib-knit shaft holds the sock comfortably in place. Calf height.